1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lbvjy [14]
3 years ago
13

An instructor computed a least squares regression line to predict final course percentage based on Exam 1. She got the following

formula: yhat=34.28+0.5897x. Suppose that a student who made a grade of 76 on Exam 1 had a final percentage grade of 71.66%. What is the residual?
Mathematics
1 answer:
blondinia [14]3 years ago
8 0

Answer:

8.0372

Step-by-step explanation:

given that an instructor computed a least squares regression line to predict final course percentage based on Exam 1.

The regression equation was found out as

y hat = 34.28+0.5897x

When a student makes a grade of 76 one exam 1, and 71.66% in final exam we have

x = 76 and y = 71.66

Substitute to get the estimated y as per regression line as

y hat =34.28+0.5897(76)\\=79.0972

Residual = difference between y hat and y

= |79.0972-71.66|\\= 8.0372

You might be interested in
Consider triangle ABC where AB=X+5, BC=X-2, area is 30cm squared. Find X by solving X^2+3X-70=0, and find the perimeter.
klasskru [66]

Answer:

What the hell AC is not given so you can't find the Perimeter

Step-by-step explanation:

  • x^2+3x-70=0
  • (x-7)(x+10)=0
  • x-7=0

       x+10=0

  • x=7

       x=-10

AB=x+5

  • AB=12

        AB=-5

BC=x-2

  • BC=5

        BC=-12

Area of ABC = 30cm2

<u>Perimeter of ABC = AB+BC+</u><u>AC</u>

<u />

8 0
2 years ago
I NEED HELP PLEASE !
MrRa [10]

Answer:

x = 4, -2 1/2

Step-by-step explanation:

factors:

(2x + 5) (x - 4)

set each factor equal to zero:

2x + 5 = 0

2x = -5

x = -5/2

x - 4 = 0

x = 4

6 0
3 years ago
Which THREE reflective symmetries apply to this square so that it carries onto itself?
valina [46]

Answer:

We need an image of the square.

Step-by-step explanation:

5 0
3 years ago
Find the volume <br><br> 10m <br> 15m<br> 15m <br> 24m
yarga [219]

Answer:

The volume of this figure = 1800 m ³

Step-by-step explanation:

The volume of prism =( base × height × length ) / 2

=> (15 × 10 × 24 ) /2

=> (3600)/2

=> 1800 m³

6 0
2 years ago
Pam has 15 candies in her bag. Her mother puts another handful of candies into the bag. Pam counts all the candies and she now h
julsineya [31]

Answer: 15+X=27

Step-by-step explanation: 15+X=27 X Represents How Much More Is Added

8 0
3 years ago
Other questions:
  • Select the pair of functions representing f(x) and g(x) if f(g(x)) =18x+1.
    13·1 answer
  • Evaluate (4.0x10^5)(7.0x10^7)
    9·1 answer
  • Is a 1/2 bigger than 1/8
    14·1 answer
  • Brooklyn has a goal to save $8,000 to buy a new entertainment system. In order to meet that goal, she deposited $4,132.79 into a
    7·2 answers
  • Is due today Help!!! Algebra ll
    5·1 answer
  • Tamara says she used the GCF to factor the expression 21x + 56xy as 7(3x + 8xy). Is she correct? Explain.
    9·1 answer
  • F+ 20 = -1<br> Solve the equation and check your solution
    15·1 answer
  • A)Loss is denoted by a negative integer and profit is denoted by a positive integer. A
    10·1 answer
  • Questions number 1
    9·1 answer
  • What is the least common multiple of 4 and 10<br><br>A. 2<br><br>B.4<br><br>C. 20<br><br>D. 40​
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!